.pro_img{
	width: 481px;
	overflow: hidden;
	background: #f6f6f6;
	border-right: 1px solid #b9b9b9;
}
/*大图*/
.big_img{
	width: 188px;
	height: 251px;
	margin: 0 auto;
	margin-bottom: 14px;
	margin-top: 57px;
	overflow: hidden;
	position: relative;
}
.big_img img{
	height: 100%;
	display: none;
	position: absolute;
	top: -9999px;
	bottom: -9999px;
	left: -9999px;
	right: -9999px;
	margin: auto;
	
}

/*.big_img img:nth-of-type(1){
	display: block;
}*/
/*小图*/
.small_img{
	overflow: hidden;
}
.pro_img input[type="radio"]{
	display: none;
}
.img{
	float: left;
	width: 96px;
	height: 91px;
	overflow: hidden;/*溢出隐藏*/
	border: 1px solid #b9b9b9;
	border-right: none;
}
.img img{
	width: 100%;
}

.pro_img input[type="radio"]:checked+img{
	display: block;
}